Material: Chrysotile, Valmalenco (Italy)

GENERAL INFO IMAGE

Provenance: Valmalenco, Sondrio

Description: The Valmalenco serpentinite (Central Alps, Northern Italy) was subject to chrysotile asbestos mining, from the XIX century until 1975. NEW ERROR CALCULATED!

FPTI index: 2.133

FPTI error: 0.097

Parameters:



   Mean Length


Value:       10.0

Value Error:       0.05

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   Mean Diameter


Value:       0.5

Value Error:       0.004979

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   Crystal Curvature


Value:       cylindrical surface

Value Error:       0.0

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   Crystal Habit


Value:       curled

Value Error:       0.0

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   Fibre Density


Value:       2.53

Value Error:       0.001

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   Hydrophobic Character of the Surface


Value:       hydrophilic

Value Error:       0.0

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   Surface Area


Value:       39.0

Value Error:       0.0

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   Total Iron Content


Value:       1.4

Value Error:       0.02

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   Ferrous Iron


Value:       1.4

Value Error:       0.000916

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   Surface Ferrous/Iron Nuclearity


Value:       >2

Value Error:       0.02

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   Content of toxic elements other than iron


Value:       13.2

Value Error:       0.0

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   Fibre dissolution rate


Value:       0.3

Value Error:       0.0

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   Mean velocity of iron release


Value:       3.6

Value Error:       0.0

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   Velocity of amorphous silica production with dissolution


Value:       66.0

Value Error:       0.0

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   Mean velocity release of toxic elements


Value:       7081.0

Value Error:       0.0

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   Zeta Potential


Value:       negative at pH = 4.5 (intracell) only

Value Error:       0.0

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   Zeta Potential induced fibre aggregation


Value:       26.0

Value Error:       0.0

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   Cation exchange capacity


Value:       False

Value Error:       0.0

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